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<?php
/**
* Upgrade API: WP_Automatic_Updater class
*
* @package WordPress
* @subpackage Upgrader
* @since 4.6.0
*/
/**
* Core class used for handling automatic background updates.
*
* @since 3.7.0
* @since 4.6.0 Moved to its own file from wp-admin/includes/class-wp-upgrader.php.
*/
#[AllowDynamicProperties]
class WP_Automatic_Updater {
/**
* Tracks update results during processing.
*
* @var array
*/
protected $update_results = array();
/**
* Determines whether the entire automatic updater is disabled.
*
* @since 3.7.0
*
* @return bool True if the automatic updater is disabled, false otherwise.
*/
public function is_disabled() {
// Background updates are disabled if you don't want file changes.
if ( ! wp_is_file_mod_allowed( 'automatic_updater' ) ) {
return true;
}
if ( wp_installing() ) {
return true;
}
// More fine grained control can be done through the WP_AUTO_UPDATE_CORE constant and filters.
$disabled = defined( 'AUTOMATIC_UPDATER_DISABLED' ) && AUTOMATIC_UPDATER_DISABLED;
/**
* Filters whether to entirely disable background updates.
*
* There are more fine-grained filters and controls for selective disabling.
* This filter parallels the AUTOMATIC_UPDATER_DISABLED constant in name.
*
* This also disables update notification emails. That may change in the future.
*
* @since 3.7.0
*
* @param bool $disabled Whether the updater should be disabled.
*/
return apply_filters( 'automatic_updater_disabled', $disabled );
}
/**
* Checks whether access to a given directory is allowed.
*
* This is used when detecting version control checkouts. Takes into account
* the PHP `open_basedir` restrictions, so that WordPress does not try to access
* directories it is not allowed to.
*
* @since 6.2.0
*
* @param string $dir The directory to check.
* @return bool True if access to the directory is allowed, false otherwise.
*/
public function is_allowed_dir( $dir ) {
if ( is_string( $dir ) ) {
$dir = trim( $dir );
}
if ( ! is_string( $dir ) || '' === $dir ) {
_doing_it_wrong(
__METHOD__,
sprintf(
/* translators: %s: The "$dir" argument. */
__( 'The "%s" argument must be a non-empty string.' ),
'$dir'
),
'6.2.0'
);
return false;
}
$open_basedir = ini_get( 'open_basedir' );
if ( empty( $open_basedir ) ) {
return true;
}
$open_basedir_list = explode( PATH_SEPARATOR, $open_basedir );
foreach ( $open_basedir_list as $basedir ) {
if ( '' !== trim( $basedir ) && str_starts_with( $dir, $basedir ) ) {
return true;
}
}
return false;
}
/**
* Checks for version control checkouts.
*
* Checks for Subversion, Git, Mercurial, and Bazaar. It recursively looks up the
* filesystem to the top of the drive, erring on the side of detecting a VCS
* checkout somewhere.
*
* ABSPATH is always checked in addition to whatever `$context` is (which may be the
* wp-content directory, for example). The underlying assumption is that if you are
* using version control *anywhere*, then you should be making decisions for
* how things get updated.
*
* @since 3.7.0
*
* @param string $context The filesystem path to check, in addition to ABSPATH.
* @return bool True if a VCS checkout was discovered at `$context` or ABSPATH,
* or anywhere higher. False otherwise.
*/
public function is_vcs_checkout( $context ) {
$context_dirs = array( untrailingslashit( $context ) );
if ( ABSPATH !== $context ) {
$context_dirs[] = untrailingslashit( ABSPATH );
}
$vcs_dirs = array( '.svn', '.git', '.hg', '.bzr' );
$check_dirs = array();
foreach ( $context_dirs as $context_dir ) {
// Walk up from $context_dir to the root.
do {
$check_dirs[] = $context_dir;
// Once we've hit '/' or 'C:\', we need to stop. dirname will keep returning the input here.
if ( dirname( $context_dir ) === $context_dir ) {
break;
}
// Continue one level at a time.
} while ( $context_dir = dirname( $context_dir ) );
}
$check_dirs = array_unique( $check_dirs );
$checkout = false;
// Search all directories we've found for evidence of version control.
foreach ( $vcs_dirs as $vcs_dir ) {
foreach ( $check_dirs as $check_dir ) {
if ( ! $this->is_allowed_dir( $check_dir ) ) {
continue;
}
$checkout = is_dir( rtrim( $check_dir, '\\/' ) . "/$vcs_dir" );
if ( $checkout ) {
break 2;
}
}
}
/**
* Filters whether the automatic updater should consider a filesystem
* location to be potentially managed by a version control system.
*
* @since 3.7.0
*
* @param bool $checkout Whether a VCS checkout was discovered at `$context`
* or ABSPATH, or anywhere higher.
* @param string $context The filesystem context (a path) against which
* filesystem status should be checked.
*/
return apply_filters( 'automatic_updates_is_vcs_checkout', $checkout, $context );
}
/**
* Tests to see if we can and should update a specific item.
*
* @since 3.7.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*
* @param string $type The type of update being checked: 'core', 'theme',
* 'plugin', 'translation'.
* @param object $item The update offer.
* @param string $context The filesystem context (a path) against which filesystem
* access and status should be checked.
* @return bool True if the item should be updated, false otherwise.
*/
public function should_update( $type, $item, $context ) {
// Used to see if WP_Filesystem is set up to allow unattended updates.
$skin = new Automatic_Upgrader_Skin();
if ( $this->is_disabled() ) {
return false;
}
// Only relax the filesystem checks when the update doesn't include new files.
$allow_relaxed_file_ownership = false;
if ( 'core' === $type && isset( $item->new_files ) && ! $item->new_files ) {
$allow_relaxed_file_ownership = true;
}
// If we can't do an auto core update, we may still be able to email the user.
if ( ! $skin->request_filesystem_credentials( false, $context, $allow_relaxed_file_ownership )
|| $this->is_vcs_checkout( $context )
) {
if ( 'core' === $type ) {
$this->send_core_update_notification_email( $item );
}
return false;
}
// Next up, is this an item we can update?
if ( 'core' === $type ) {
$update = Core_Upgrader::should_update_to_version( $item->current );
} elseif ( 'plugin' === $type || 'theme' === $type ) {
$update = ! empty( $item->autoupdate );
if ( ! $update && wp_is_auto_update_enabled_for_type( $type ) ) {
// Check if the site admin has enabled auto-updates by default for the specific item.
$auto_updates = (array) get_site_option( "auto_update_{$type}s", array() );
$update = in_array( $item->{$type}, $auto_updates, true );
}
} else {
$update = ! empty( $item->autoupdate );
}
// If the `disable_autoupdate` flag is set, override any user-choice, but allow filters.
if ( ! empty( $item->disable_autoupdate ) ) {
$update = false;
}
/**
* Filters whether to automatically update core, a plugin, a theme, or a language.
*
* The dynamic portion of the hook name, `$type`, refers to the type of update
* being checked.
*
* Possible hook names include:
*
* - `auto_update_core`
* - `auto_update_plugin`
* - `auto_update_theme`
* - `auto_update_translation`
*
* Since WordPress 3.7, minor and development versions of core, and translations have
* been auto-updated by default. New installs on WordPress 5.6 or higher will also
* auto-update major versions by default. Starting in 5.6, older sites can opt-in to
* major version auto-updates, and auto-updates for plugins and themes.
*
* See the {@see 'allow_dev_auto_core_updates'}, {@see 'allow_minor_auto_core_updates'},
* and {@see 'allow_major_auto_core_updates'} filters for a more straightforward way to
* adjust core updates.
*
* @since 3.7.0
* @since 5.5.0 The `$update` parameter accepts the value of null.
*
* @param bool|null $update Whether to update. The value of null is internally used
* to detect whether nothing has hooked into this filter.
* @param object $item The update offer.
*/
$update = apply_filters( "auto_update_{$type}", $update, $item );
if ( ! $update ) {
if ( 'core' === $type ) {
$this->send_core_update_notification_email( $item );
}
return false;
}
// If it's a core update, are we actually compatible with its requirements?
if ( 'core' === $type ) {
global $wpdb;
$php_compat = version_compare( PHP_VERSION, $item->php_version, '>=' );
if ( file_exists( WP_CONTENT_DIR . '/db.php' ) && empty( $wpdb->is_mysql ) ) {
$mysql_compat = true;
} else {
$mysql_compat = version_compare( $wpdb->db_version(), $item->mysql_version, '>=' );
}
if ( ! $php_compat || ! $mysql_compat ) {
return false;
}
}
// If updating a plugin or theme, ensure the minimum PHP version requirements are satisfied.
if ( in_array( $type, array( 'plugin', 'theme' ), true ) ) {
if ( ! empty( $item->requires_php ) && version_compare( PHP_VERSION, $item->requires_php, '<' ) ) {
return false;
}
}
return true;
}
/**
* Notifies an administrator of a core update.
*
* @since 3.7.0
*
* @param object $item The update offer.
* @return bool True if the site administrator is notified of a core update,
* false otherwise.
*/
protected function send_core_update_notification_email( $item ) {
$notified = get_site_option( 'auto_core_update_notified' );
// Don't notify if we've already notified the same email address of the same version.
if ( $notified
&& get_site_option( 'admin_email' ) === $notified['email']
&& $notified['version'] === $item->current
) {
return false;
}
// See if we need to notify users of a core update.
$notify = ! empty( $item->notify_email );
/**
* Filters whether to notify the site administrator of a new core update.
*
* By default, administrators are notified when the update offer received
* from WordPress.org sets a particular flag. This allows some discretion
* in if and when to notify.
*
* This filter is only evaluated once per release. If the same email address
* was already notified of the same new version, WordPress won't repeatedly
* email the administrator.
*
* This filter is also used on about.php to check if a plugin has disabled
* these notifications.
*
* @since 3.7.0
*
* @param bool $notify Whether the site administrator is notified.
* @param object $item The update offer.
*/
if ( ! apply_filters( 'send_core_update_notification_email', $notify, $item ) ) {
return false;
}
$this->send_email( 'manual', $item );
return true;
}
/**
* Updates an item, if appropriate.
*
* @since 3.7.0
*
* @param string $type The type of update being checked: 'core', 'theme', 'plugin', 'translation'.
* @param object $item The update offer.
* @return null|WP_Error
*/
public function update( $type, $item ) {
$skin = new Automatic_Upgrader_Skin();
switch ( $type ) {
case 'core':
// The Core upgrader doesn't use the Upgrader's skin during the actual main part of the upgrade, instead, firing a filter.
add_filter( 'update_feedback', array( $skin, 'feedback' ) );
$upgrader = new Core_Upgrader( $skin );
$context = ABSPATH;
break;
case 'plugin':
$upgrader = new Plugin_Upgrader( $skin );
$context = WP_PLUGIN_DIR; // We don't support custom Plugin directories, or updates for WPMU_PLUGIN_DIR.
break;
case 'theme':
$upgrader = new Theme_Upgrader( $skin );
$context = get_theme_root( $item->theme );
break;
case 'translation':
$upgrader = new Language_Pack_Upgrader( $skin );
$context = WP_CONTENT_DIR; // WP_LANG_DIR;
break;
}
// Determine whether we can and should perform this update.
if ( ! $this->should_update( $type, $item, $context ) ) {
return false;
}
/**
* Fires immediately prior to an auto-update.
*
* @since 4.4.0
*
* @param string $type The type of update being checked: 'core', 'theme', 'plugin', or 'translation'.
* @param object $item The update offer.
* @param string $context The filesystem context (a path) against which filesystem access and status
* should be checked.
*/
do_action( 'pre_auto_update', $type, $item, $context );
$upgrader_item = $item;
switch ( $type ) {
case 'core':
/* translators: %s: WordPress version. */
$skin->feedback( __( 'Updating to WordPress %s' ), $item->version );
/* translators: %s: WordPress version. */
$item_name = sprintf( __( 'WordPress %s' ), $item->version );
break;
case 'theme':
$upgrader_item = $item->theme;
$theme = wp_get_theme( $upgrader_item );
$item_name = $theme->Get( 'Name' );
// Add the current version so that it can be reported in the notification email.
$item->current_version = $theme->get( 'Version' );
if ( empty( $item->current_version ) ) {
$item->current_version = false;
}
/* translators: %s: Theme name. */
$skin->feedback( __( 'Updating theme: %s' ), $item_name );
break;
case 'plugin':
$upgrader_item = $item->plugin;
$plugin_data = get_plugin_data( $context . '/' . $upgrader_item );
$item_name = $plugin_data['Name'];
// Add the current version so that it can be reported in the notification email.
$item->current_version = $plugin_data['Version'];
if ( empty( $item->current_version ) ) {
$item->current_version = false;
}
/* translators: %s: Plugin name. */
$skin->feedback( __( 'Updating plugin: %s' ), $item_name );
break;
case 'translation':
$language_item_name = $upgrader->get_name_for_update( $item );
/* translators: %s: Project name (plugin, theme, or WordPress). */
$item_name = sprintf( __( 'Translations for %s' ), $language_item_name );
/* translators: 1: Project name (plugin, theme, or WordPress), 2: Language. */
$skin->feedback( sprintf( __( 'Updating translations for %1$s (%2$s)…' ), $language_item_name, $item->language ) );
break;
}
$allow_relaxed_file_ownership = false;
if ( 'core' === $type && isset( $item->new_files ) && ! $item->new_files ) {
$allow_relaxed_file_ownership = true;
}
$is_debug = WP_DEBUG && WP_DEBUG_LOG;
if ( 'plugin' === $type ) {
$was_active = is_plugin_active( $upgrader_item );
if ( $is_debug ) {
error_log( ' Upgrading plugin ' . var_export( $item->slug, true ) . '...' );
}
}
if ( 'theme' === $type && $is_debug ) {
error_log( ' Upgrading theme ' . var_export( $item->theme, true ) . '...' );
}
/*
* Enable maintenance mode before upgrading the plugin or theme.
*
* This avoids potential non-fatal errors being detected
* while scraping for a fatal error if some files are still
* being moved.
*
* While these checks are intended only for plugins,
* maintenance mode is enabled for all upgrade types as any
* update could contain an error or warning, which could cause
* the scrape to miss a fatal error in the plugin update.
*/
if ( 'translation' !== $type ) {
$upgrader->maintenance_mode( true );
}
// Boom, this site's about to get a whole new splash of paint!
$upgrade_result = $upgrader->upgrade(
$upgrader_item,
array(
'clear_update_cache' => false,
// Always use partial builds if possible for core updates.
'pre_check_md5' => false,
// Only available for core updates.
'attempt_rollback' => true,
// Allow relaxed file ownership in some scenarios.
'allow_relaxed_file_ownership' => $allow_relaxed_file_ownership,
)
);
/*
* After WP_Upgrader::upgrade() completes, maintenance mode is disabled.
*
* Re-enable maintenance mode while attempting to detect fatal errors
* and potentially rolling back.
*
* This avoids errors if the site is visited while fatal errors exist
* or while files are still being moved.
*/
if ( 'translation' !== $type ) {
$upgrader->maintenance_mode( true );
}
// If the filesystem is unavailable, false is returned.
if ( false === $upgrade_result ) {
$upgrade_result = new WP_Error( 'fs_unavailable', __( 'Could not access filesystem.' ) );
}
if ( 'core' === $type ) {
if ( is_wp_error( $upgrade_result )
&& ( 'up_to_date' === $upgrade_result->get_error_code()
|| 'locked' === $upgrade_result->get_error_code() )
) {
// Allow visitors to browse the site again.
$upgrader->maintenance_mode( false );
/*
* These aren't actual errors, treat it as a skipped-update instead
* to avoid triggering the post-core update failure routines.
*/
return false;
}
// Core doesn't output this, so let's append it, so we don't get confused.
if ( is_wp_error( $upgrade_result ) ) {
$upgrade_result->add( 'installation_failed', __( 'Installation failed.' ) );
$skin->error( $upgrade_result );
} else {
$skin->feedback( __( 'WordPress updated successfully.' ) );
}
}
$is_debug = WP_DEBUG && WP_DEBUG_LOG;
if ( 'theme' === $type && $is_debug ) {
error_log( ' Theme ' . var_export( $item->theme, true ) . ' has been upgraded.' );
}
if ( 'plugin' === $type ) {
if ( $is_debug ) {
error_log( ' Plugin ' . var_export( $item->slug, true ) . ' has been upgraded.' );
if ( is_plugin_inactive( $upgrader_item ) ) {
error_log( ' ' . var_export( $upgrader_item, true ) . ' is inactive and will not be checked for fatal errors.' );
}
}
if ( $was_active && ! is_wp_error( $upgrade_result ) ) {
/*
* The usual time limit is five minutes. However, as a loopback request
* is about to be performed, increase the time limit to account for this.
*/
if ( function_exists( 'set_time_limit' ) ) {
set_time_limit( 10 * MINUTE_IN_SECONDS );
}
/*
* Avoids a race condition when there are 2 sequential plugins that have
* fatal errors. It seems a slight delay is required for the loopback to
* use the updated plugin code in the request. This can cause the second
* plugin's fatal error checking to be inaccurate, and may also affect
* subsequent plugin checks.
*/
sleep( 2 );
if ( $this->has_fatal_error() ) {
$upgrade_result = new WP_Error();
$temp_backup = array(
array(
'dir' => 'plugins',
'slug' => $item->slug,
'src' => WP_PLUGIN_DIR,
),
);
$backup_restored = $upgrader->restore_temp_backup( $temp_backup );
if ( is_wp_error( $backup_restored ) ) {
$upgrade_result->add(
'plugin_update_fatal_error_rollback_failed',
sprintf(
/* translators: %s: The plugin's slug. */
__( "The update for '%s' contained a fatal error. The previously installed version could not be restored." ),
$item->slug
)
);
$upgrade_result->merge_from( $backup_restored );
} else {
$upgrade_result->add(
'plugin_update_fatal_error_rollback_successful',
sprintf(
/* translators: %s: The plugin's slug. */
__( "The update for '%s' contained a fatal error. The previously installed version has been restored." ),
$item->slug
)
);
$backup_deleted = $upgrader->delete_temp_backup( $temp_backup );
if ( is_wp_error( $backup_deleted ) ) {
$upgrade_result->merge_from( $backup_deleted );
}
}
/*
* Should emails not be working, log the message(s) so that
* the log file contains context for the fatal error,
* and whether a rollback was performed.
*
* `trigger_error()` is not used as it outputs a stack trace
* to this location rather than to the fatal error, which will
* appear above this entry in the log file.
*/
if ( $is_debug ) {
error_log( ' ' . implode( "\n", $upgrade_result->get_error_messages() ) );
}
} elseif ( $is_debug ) {
error_log( ' The update for ' . var_export( $item->slug, true ) . ' has no fatal errors.' );
}
}
}
// All processes are complete. Allow visitors to browse the site again.
if ( 'translation' !== $type ) {
$upgrader->maintenance_mode( false );
}
$this->update_results[ $type ][] = (object) array(
'item' => $item,
'result' => $upgrade_result,
'name' => $item_name,
'messages' => $skin->get_upgrade_messages(),
);
return $upgrade_result;
}
/**
* Kicks off the background update process, looping through all pending updates.
*
* @since 3.7.0
*/
public function run() {
if ( $this->is_disabled() ) {
return;
}
if ( ! is_main_network() || ! is_main_site() ) {
return;
}
if ( ! WP_Upgrader::create_lock( 'auto_updater' ) ) {
return;
}
$is_debug = WP_DEBUG && WP_DEBUG_LOG;
if ( $is_debug ) {
error_log( 'Automatic updates starting...' );
}
// Don't automatically run these things, as we'll handle it ourselves.
remove_action( 'upgrader_process_complete', array( 'Language_Pack_Upgrader', 'async_upgrade' ), 20 );
remove_action( 'upgrader_process_complete', 'wp_version_check' );
remove_action( 'upgrader_process_complete', 'wp_update_plugins' );
remove_action( 'upgrader_process_complete', 'wp_update_themes' );
// Next, plugins.
wp_update_plugins(); // Check for plugin updates.
$plugin_updates = get_site_transient( 'update_plugins' );
if ( $plugin_updates && ! empty( $plugin_updates->response ) ) {
if ( $is_debug ) {
error_log( ' Automatic plugin updates starting...' );
}
foreach ( $plugin_updates->response as $plugin ) {
$this->update( 'plugin', $plugin );
}
// Force refresh of plugin update information.
wp_clean_plugins_cache();
if ( $is_debug ) {
error_log( ' Automatic plugin updates complete.' );
}
}
// Next, those themes we all love.
wp_update_themes(); // Check for theme updates.
$theme_updates = get_site_transient( 'update_themes' );
if ( $theme_updates && ! empty( $theme_updates->response ) ) {
if ( $is_debug ) {
error_log( ' Automatic theme updates starting...' );
}
foreach ( $theme_updates->response as $theme ) {
$this->update( 'theme', (object) $theme );
}
// Force refresh of theme update information.
wp_clean_themes_cache();
if ( $is_debug ) {
error_log( ' Automatic theme updates complete.' );
}
}
if ( $is_debug ) {
error_log( 'Automatic updates complete.' );
}
// Next, process any core update.
wp_version_check(); // Check for core updates.
$core_update = find_core_auto_update();
if ( $core_update ) {
$this->update( 'core', $core_update );
}
/*
* Clean up, and check for any pending translations.
* (Core_Upgrader checks for core updates.)
*/
$theme_stats = array();
if ( isset( $this->update_results['theme'] ) ) {
foreach ( $this->update_results['theme'] as $upgrade ) {
$theme_stats[ $upgrade->item->theme ] = ( true === $upgrade->result );
}
}
wp_update_themes( $theme_stats ); // Check for theme updates.
$plugin_stats = array();
if ( isset( $this->update_results['plugin'] ) ) {
foreach ( $this->update_results['plugin'] as $upgrade ) {
$plugin_stats[ $upgrade->item->plugin ] = ( true === $upgrade->result );
}
}
wp_update_plugins( $plugin_stats ); // Check for plugin updates.
// Finally, process any new translations.
$language_updates = wp_get_translation_updates();
if ( $language_updates ) {
foreach ( $language_updates as $update ) {
$this->update( 'translation', $update );
}
// Clear existing caches.
wp_clean_update_cache();
wp_version_check(); // Check for core updates.
wp_update_themes(); // Check for theme updates.
wp_update_plugins(); // Check for plugin updates.
}
// Send debugging email to admin for all development installations.
if ( ! empty( $this->update_results ) ) {
$development_version = str_contains( wp_get_wp_version(), '-' );
/**
* Filters whether to send a debugging email for each automatic background update.
*
* @since 3.7.0
*
* @param bool $development_version By default, emails are sent if the
* install is a development version.
* Return false to avoid the email.
*/
if ( apply_filters( 'automatic_updates_send_debug_email', $development_version ) ) {
$this->send_debug_email();
}
if ( ! empty( $this->update_results['core'] ) ) {
$this->after_core_update( $this->update_results['core'][0] );
} elseif ( ! empty( $this->update_results['plugin'] ) || ! empty( $this->update_results['theme'] ) ) {
$this->after_plugin_theme_update( $this->update_results );
}
/**
* Fires after all automatic updates have run.
*
* @since 3.8.0
*
* @param array $update_results The results of all attempted updates.
*/
do_action( 'automatic_updates_complete', $this->update_results );
}
WP_Upgrader::release_lock( 'auto_updater' );
}
/**
* Checks whether to send an email and avoid processing future updates after
* attempting a core update.
*
* @since 3.7.0
*
* @param object $update_result The result of the core update. Includes the update offer and result.
*/
protected function after_core_update( $update_result ) {
$wp_version = wp_get_wp_version();
$core_update = $update_result->item;
$result = $update_result->result;
if ( ! is_wp_error( $result ) ) {
$this->send_email( 'success', $core_update );
return;
}
$error_code = $result->get_error_code();
/*
* Any of these WP_Error codes are critical failures, as in they occurred after we started to copy core files.
* We should not try to perform a background update again until there is a successful one-click update performed by the user.
*/
$critical = false;
if ( 'disk_full' === $error_code || str_contains( $error_code, '__copy_dir' ) ) {
$critical = true;
} elseif ( 'rollback_was_required' === $error_code && is_wp_error( $result->get_error_data()->rollback ) ) {
// A rollback is only critical if it failed too.
$critical = true;
$rollback_result = $result->get_error_data()->rollback;
} elseif ( str_contains( $error_code, 'do_rollback' ) ) {
$critical = true;
}
if ( $critical ) {
$critical_data = array(
'attempted' => $core_update->current,
'current' => $wp_version,
'error_code' => $error_code,
'error_data' => $result->get_error_data(),
'timestamp' => time(),
'critical' => true,
);
if ( isset( $rollback_result ) ) {
$critical_data['rollback_code'] = $rollback_result->get_error_code();
$critical_data['rollback_data'] = $rollback_result->get_error_data();
}
update_site_option( 'auto_core_update_failed', $critical_data );
$this->send_email( 'critical', $core_update, $result );
return;
}
/*
* Any other WP_Error code (like download_failed or files_not_writable) occurs before
* we tried to copy over core files. Thus, the failures are early and graceful.
*
* We should avoid trying to perform a background update again for the same version.
* But we can try again if another version is released.
*
* For certain 'transient' failures, like download_failed, we should allow retries.
* In fact, let's schedule a special update for an hour from now. (It's possible
* the issue could actually be on WordPress.org's side.) If that one fails, then email.
*/
$send = true;
$transient_failures = array( 'incompatible_archive', 'download_failed', 'insane_distro', 'locked' );
if ( in_array( $error_code, $transient_failures, true ) && ! get_site_option( 'auto_core_update_failed' ) ) {
wp_schedule_single_event( time() + HOUR_IN_SECONDS, 'wp_maybe_auto_update' );
$send = false;
}
$notified = get_site_option( 'auto_core_update_notified' );
// Don't notify if we've already notified the same email address of the same version of the same notification type.
if ( $notified
&& 'fail' === $notified['type']
&& get_site_option( 'admin_email' ) === $notified['email']
&& $notified['version'] === $core_update->current
) {
$send = false;
}
update_site_option(
'auto_core_update_failed',
array(
'attempted' => $core_update->current,
'current' => $wp_version,
'error_code' => $error_code,
'error_data' => $result->get_error_data(),
'timestamp' => time(),
'retry' => in_array( $error_code, $transient_failures, true ),
)
);
if ( $send ) {
$this->send_email( 'fail', $core_update, $result );
}
}
/**
* Sends an email upon the completion or failure of a background core update.
*
* @since 3.7.0
*
* @param string $type The type of email to send. Can be one of 'success', 'fail', 'manual', 'critical'.
* @param object $core_update The update offer that was attempted.
* @param mixed $result Optional. The result for the core update. Can be WP_Error.
*/
protected function send_email( $type, $core_update, $result = null ) {
update_site_option(
'auto_core_update_notified',
array(
'type' => $type,
'email' => get_site_option( 'admin_email' ),
'version' => $core_update->current,
'timestamp' => time(),
)
);
$next_user_core_update = get_preferred_from_update_core();
// If the update transient is empty, use the update we just performed.
if ( ! $next_user_core_update ) {
$next_user_core_update = $core_update;
}
if ( 'upgrade' === $next_user_core_update->response
&& version_compare( $next_user_core_update->version, $core_update->version, '>' )
) {
$newer_version_available = true;
} else {
$newer_version_available = false;
}
/**
* Filters whether to send an email following an automatic background core update.
*
* @since 3.7.0
*
* @param bool $send Whether to send the email. Default true.
* @param string $type The type of email to send. Can be one of
* 'success', 'fail', 'critical'.
* @param object $core_update The update offer that was attempted.
* @param mixed $result The result for the core update. Can be WP_Error.
*/
if ( 'manual' !== $type && ! apply_filters( 'auto_core_update_send_email', true, $type, $core_update, $result ) ) {
return;
}
switch ( $type ) {
case 'success': // We updated.
/* translators: Site updated notification email subject. 1: Site title, 2: WordPress version. */
$subject = __( '[%1$s] Your site has updated to WordPress %2$s' );
break;
case 'fail': // We tried to update but couldn't.
case 'manual': // We can't update (and made no attempt).
/* translators: Update available notification email subject. 1: Site title, 2: WordPress version. */
$subject = __( '[%1$s] WordPress %2$s is available. Please update!' );
break;
case 'critical': // We tried to update, started to copy files, then things went wrong.
/* translators: Site down notification email subject. 1: Site title. */
$subject = __( '[%1$s] URGENT: Your site may be down due to a failed update' );
break;
default:
return;
}
// If the auto-update is not to the latest version, say that the current version of WP is available instead.
$version = 'success' === $type ? $core_update->current : $next_user_core_update->current;
$subject = sprintf( $subject, wp_specialchars_decode( get_option( 'blogname' ), ENT_QUOTES ), $version );
$body = '';
switch ( $type ) {
case 'success':
$body .= sprintf(
/* translators: 1: Home URL, 2: WordPress version. */
__( 'Howdy! Your site at %1$s has been updated automatically to WordPress %2$s.' ),
home_url(),
$core_update->current
);
$body .= "\n\n";
if ( ! $newer_version_available ) {
$body .= __( 'No further action is needed on your part.' ) . ' ';
}
// Can only reference the About screen if their update was successful.
list( $about_version ) = explode( '-', $core_update->current, 2 );
/* translators: %s: WordPress version. */
$body .= sprintf( __( 'For more on version %s, see the About WordPress screen:' ), $about_version );
$body .= "\n" . admin_url( 'about.php' );
if ( $newer_version_available ) {
/* translators: %s: WordPress latest version. */
$body .= "\n\n" . sprintf( __( 'WordPress %s is also now available.' ), $next_user_core_update->current ) . ' ';
$body .= __( 'Updating is easy and only takes a few moments:' );
$body .= "\n" . network_admin_url( 'update-core.php' );
}
break;
case 'fail':
case 'manual':
$body .= sprintf(
/* translators: 1: Home URL, 2: WordPress version. */
__( 'Please update your site at %1$s to WordPress %2$s.' ),
home_url(),
$next_user_core_update->current
);
$body .= "\n\n";
/*
* Don't show this message if there is a newer version available.
* Potential for confusion, and also not useful for them to know at this point.
*/
if ( 'fail' === $type && ! $newer_version_available ) {
$body .= __( 'An attempt was made, but your site could not be updated automatically.' ) . ' ';
}
$body .= __( 'Updating is easy and only takes a few moments:' );
$body .= "\n" . network_admin_url( 'update-core.php' );
break;
case 'critical':
if ( $newer_version_available ) {
$body .= sprintf(
/* translators: 1: Home URL, 2: WordPress version. */
__( 'Your site at %1$s experienced a critical failure while trying to update WordPress to version %2$s.' ),
home_url(),
$core_update->current
);
} else {
$body .= sprintf(
/* translators: 1: Home URL, 2: WordPress latest version. */
__( 'Your site at %1$s experienced a critical failure while trying to update to the latest version of WordPress, %2$s.' ),
home_url(),
$core_update->current
);
}
$body .= "\n\n" . __( "This means your site may be offline or broken. Don't panic; this can be fixed." );
$body .= "\n\n" . __( "Please check out your site now. It's possible that everything is working. If it says you need to update, you should do so:" );
$body .= "\n" . network_admin_url( 'update-core.php' );
break;
}
$critical_support = 'critical' === $type && ! empty( $core_update->support_email );
if ( $critical_support ) {
// Support offer if available.
$body .= "\n\n" . sprintf(
/* translators: %s: Support email address. */
__( 'The WordPress team is willing to help you. Forward this email to %s and the team will work with you to make sure your site is working.' ),
$core_update->support_email
);
} else {
// Add a note about the support forums.
$body .= "\n\n" . __( 'If you experience any issues or need support, the volunteers in the WordPress.org support forums may be able to help.' );
$body .= "\n" . __( 'https://wordpress.org/support/forums/' );
}
// Updates are important!
if ( 'success' !== $type || $newer_version_available ) {
$body .= "\n\n" . __( 'Keeping your site updated is important for security. It also makes the internet a safer place for you and your readers.' );
}
if ( $critical_support ) {
$body .= ' ' . __( "Reach out to WordPress Core developers to ensure you'll never have this problem again." );
}
// If things are successful and we're now on the latest, mention plugins and themes if any are out of date.
if ( 'success' === $type && ! $newer_version_available && ( get_plugin_updates() || get_theme_updates() ) ) {
$body .= "\n\n" . __( 'You also have some plugins or themes with updates available. Update them now:' );
$body .= "\n" . network_admin_url();
}
$body .= "\n\n" . __( 'The WordPress Team' ) . "\n";
if ( 'critical' === $type && is_wp_error( $result ) ) {
$body .= "\n***\n\n";
/* translators: %s: WordPress version. */
$body .= sprintf( __( 'Your site was running version %s.' ), get_bloginfo( 'version' ) );
$body .= ' ' . __( 'Some data that describes the error your site encountered has been put together.' );
$body .= ' ' . __( 'Your hosting company, support forum volunteers, or a friendly developer may be able to use this information to help you:' );
/*
* If we had a rollback and we're still critical, then the rollback failed too.
* Loop through all errors (the main WP_Error, the update result, the rollback result) for code, data, etc.
*/
if ( 'rollback_was_required' === $result->get_error_code() ) {
$errors = array( $result, $result->get_error_data()->update, $result->get_error_data()->rollback );
} else {
$errors = array( $result );
}
foreach ( $errors as $error ) {
if ( ! is_wp_error( $error ) ) {
continue;
}
$error_code = $error->get_error_code();
/* translators: %s: Error code. */
$body .= "\n\n" . sprintf( __( 'Error code: %s' ), $error_code );
if ( 'rollback_was_required' === $error_code ) {
continue;
}
if ( $error->get_error_message() ) {
$body .= "\n" . $error->get_error_message();
}
$error_data = $error->get_error_data();
if ( $error_data ) {
$body .= "\n" . implode( ', ', (array) $error_data );
}
}
$body .= "\n";
}
$to = get_site_option( 'admin_email' );
$headers = '';
$email = compact( 'to', 'subject', 'body', 'headers' );
/**
* Filters the email sent following an automatic background core update.
*
* @since 3.7.0
*
* @param array $email {
* Array of email arguments that will be passed to wp_mail().
*
* @type string $to The email recipient. An array of emails
* can be returned, as handled by wp_mail().
* @type string $subject The email's subject.
* @type string $body The email message body.
* @type string $headers Any email headers, defaults to no headers.
* }
* @param string $type The type of email being sent. Can be one of
* 'success', 'fail', 'manual', 'critical'.
* @param object $core_update The update offer that was attempted.
* @param mixed $result The result for the core update. Can be WP_Error.
*/
$email = apply_filters( 'auto_core_update_email', $email, $type, $core_update, $result );
wp_mail( $email['to'], wp_specialchars_decode( $email['subject'] ), $email['body'], $email['headers'] );
}
/**
* Checks whether an email should be sent after attempting plugin or theme updates.
*
* @since 5.5.0
*
* @param array $update_results The results of update tasks.
*/
protected function after_plugin_theme_update( $update_results ) {
$successful_updates = array();
$failed_updates = array();
if ( ! empty( $update_results['plugin'] ) ) {
/**
* Filters whether to send an email following an automatic background plugin update.
*
* @since 5.5.0
* @since 5.5.1 Added the `$update_results` parameter.
*
* @param bool $enabled True if plugin update notifications are enabled, false otherwise.
* @param array $update_results The results of plugins update tasks.
*/
$notifications_enabled = apply_filters( 'auto_plugin_update_send_email', true, $update_results['plugin'] );
if ( $notifications_enabled ) {
foreach ( $update_results['plugin'] as $update_result ) {
if ( true === $update_result->result ) {
$successful_updates['plugin'][] = $update_result;
} else {
$failed_updates['plugin'][] = $update_result;
}
}
}
}
if ( ! empty( $update_results['theme'] ) ) {
/**
* Filters whether to send an email following an automatic background theme update.
*
* @since 5.5.0
* @since 5.5.1 Added the `$update_results` parameter.
*
* @param bool $enabled True if theme update notifications are enabled, false otherwise.
* @param array $update_results The results of theme update tasks.
*/
$notifications_enabled = apply_filters( 'auto_theme_update_send_email', true, $update_results['theme'] );
if ( $notifications_enabled ) {
foreach ( $update_results['theme'] as $update_result ) {
if ( true === $update_result->result ) {
$successful_updates['theme'][] = $update_result;
} else {
$failed_updates['theme'][] = $update_result;
}
}
}
}
if ( empty( $successful_updates ) && empty( $failed_updates ) ) {
return;
}
if ( empty( $failed_updates ) ) {
$this->send_plugin_theme_email( 'success', $successful_updates, $failed_updates );
} elseif ( empty( $successful_updates ) ) {
$this->send_plugin_theme_email( 'fail', $successful_updates, $failed_updates );
} else {
$this->send_plugin_theme_email( 'mixed', $successful_updates, $failed_updates );
}
}
/**
* Sends an email upon the completion or failure of a plugin or theme background update.
*
* @since 5.5.0
*
* @param string $type The type of email to send. Can be one of 'success', 'fail', 'mixed'.
* @param array $successful_updates A list of updates that succeeded.
* @param array $failed_updates A list of updates that failed.
*/
protected function send_plugin_theme_email( $type, $successful_updates, $failed_updates ) {
// No updates were attempted.
if ( empty( $successful_updates ) && empty( $failed_updates ) ) {
return;
}
$unique_failures = false;
$past_failure_emails = get_option( 'auto_plugin_theme_update_emails', array() );
/*
* When only failures have occurred, an email should only be sent if there are unique failures.
* A failure is considered unique if an email has not been sent for an update attempt failure
* to a plugin or theme with the same new_version.
*/
if ( 'fail' === $type ) {
foreach ( $failed_updates as $update_type => $failures ) {
foreach ( $failures as $failed_update ) {
if ( ! isset( $past_failure_emails[ $failed_update->item->{$update_type} ] ) ) {
$unique_failures = true;
continue;
}
// Check that the failure represents a new failure based on the new_version.
if ( version_compare( $past_failure_emails[ $failed_update->item->{$update_type} ], $failed_update->item->new_version, '<' ) ) {
$unique_failures = true;
}
}
}
if ( ! $unique_failures ) {
return;
}
}
$body = array();
$successful_plugins = ( ! empty( $successful_updates['plugin'] ) );
$successful_themes = ( ! empty( $successful_updates['theme'] ) );
$failed_plugins = ( ! empty( $failed_updates['plugin'] ) );
$failed_themes = ( ! empty( $failed_updates['theme'] ) );
switch ( $type ) {
case 'success':
if ( $successful_plugins && $successful_themes ) {
/* translators: %s: Site title. */
$subject = __( '[%s] Some plugins and themes have automatically updated' );
$body[] = sprintf(
/* translators: %s: Home URL. */
__( 'Howdy! Some plugins and themes have automatically updated to their latest versions on your site at %s. No further action is needed on your part.' ),
home_url()
);
} elseif ( $successful_plugins ) {
/* translators: %s: Site title. */
$subject = __( '[%s] Some plugins were automatically updated' );
$body[] = sprintf(
/* translators: %s: Home URL. */
__( 'Howdy! Some plugins have automatically updated to their latest versions on your site at %s. No further action is needed on your part.' ),
home_url()
);
} else {
/* translators: %s: Site title. */
$subject = __( '[%s] Some themes were automatically updated' );
$body[] = sprintf(
/* translators: %s: Home URL. */
__( 'Howdy! Some themes have automatically updated to their latest versions on your site at %s. No further action is needed on your part.' ),
home_url()
);
}
break;
case 'fail':
case 'mixed':
if ( $failed_plugins && $failed_themes ) {
/* translators: %s: Site title. */
$subject = __( '[%s] Some plugins and themes have failed to update' );
$body[] = sprintf(
/* translators: %s: Home URL. */
__( 'Howdy! Plugins and themes failed to update on your site at %s.' ),
home_url()
);
} elseif ( $failed_plugins ) {
/* translators: %s: Site title. */
$subject = __( '[%s] Some plugins have failed to update' );
$body[] = sprintf(
/* translators: %s: Home URL. */
__( 'Howdy! Plugins failed to update on your site at %s.' ),
home_url()
);
} else {
/* translators: %s: Site title. */
$subject = __( '[%s] Some themes have failed to update' );
$body[] = sprintf(
/* translators: %s: Home URL. */
__( 'Howdy! Themes failed to update on your site at %s.' ),
home_url()
);
}
break;
}
if ( in_array( $type, array( 'fail', 'mixed' ), true ) ) {
$body[] = "\n";
$body[] = __( 'Please check your site now. It’s possible that everything is working. If there are updates available, you should update.' );
$body[] = "\n";
// List failed plugin updates.
if ( ! empty( $failed_updates['plugin'] ) ) {
$body[] = __( 'The following plugins failed to update. If there was a fatal error in the update, the previously installed version has been restored.' );
foreach ( $failed_updates['plugin'] as $item ) {
$body_message = '';
$item_url = '';
if ( ! empty( $item->item->url ) ) {
$item_url = ' : ' . esc_url( $item->item->url );
}
if ( $item->item->current_version ) {
$body_message .= sprintf(
/* translators: 1: Plugin name, 2: Current version number, 3: New version number, 4: Plugin URL. */
__( '- %1$s (from version %2$s to %3$s)%4$s' ),
html_entity_decode( $item->name ),
$item->item->current_version,
$item->item->new_version,
$item_url
);
} else {
$body_message .= sprintf(
/* translators: 1: Plugin name, 2: Version number, 3: Plugin URL. */
__( '- %1$s version %2$s%3$s' ),
html_entity_decode( $item->name ),
$item->item->new_version,
$item_url
);
}
$body[] = $body_message;
$past_failure_emails[ $item->item->plugin ] = $item->item->new_version;
}
$body[] = "\n";
}
// List failed theme updates.
if ( ! empty( $failed_updates['theme'] ) ) {
$body[] = __( 'These themes failed to update:' );
foreach ( $failed_updates['theme'] as $item ) {
if ( $item->item->current_version ) {
$body[] = sprintf(
/* translators: 1: Theme name, 2: Current version number, 3: New version number. */
__( '- %1$s (from version %2$s to %3$s)' ),
html_entity_decode( $item->name ),
$item->item->current_version,
$item->item->new_version
);
} else {
$body[] = sprintf(
/* translators: 1: Theme name, 2: Version number. */
__( '- %1$s version %2$s' ),
html_entity_decode( $item->name ),
$item->item->new_version
);
}
$past_failure_emails[ $item->item->theme ] = $item->item->new_version;
}
$body[] = "\n";
}
}
// List successful updates.
if ( in_array( $type, array( 'success', 'mixed' ), true ) ) {
$body[] = "\n";
// List successful plugin updates.
if ( ! empty( $successful_updates['plugin'] ) ) {
$body[] = __( 'These plugins are now up to date:' );
foreach ( $successful_updates['plugin'] as $item ) {
$body_message = '';
$item_url = '';
if ( ! empty( $item->item->url ) ) {
$item_url = ' : ' . esc_url( $item->item->url );
}
if ( $item->item->current_version ) {
$body_message .= sprintf(
/* translators: 1: Plugin name, 2: Current version number, 3: New version number, 4: Plugin URL. */
__( '- %1$s (from version %2$s to %3$s)%4$s' ),
html_entity_decode( $item->name ),
$item->item->current_version,
$item->item->new_version,
$item_url
);
} else {
$body_message .= sprintf(
/* translators: 1: Plugin name, 2: Version number, 3: Plugin URL. */
__( '- %1$s version %2$s%3$s' ),
html_entity_decode( $item->name ),
$item->item->new_version,
$item_url
);
}
$body[] = $body_message;
unset( $past_failure_emails[ $item->item->plugin ] );
}
$body[] = "\n";
}
// List successful theme updates.
if ( ! empty( $successful_updates['theme'] ) ) {
$body[] = __( 'These themes are now up to date:' );
foreach ( $successful_updates['theme'] as $item ) {
if ( $item->item->current_version ) {
$body[] = sprintf(
/* translators: 1: Theme name, 2: Current version number, 3: New version number. */
__( '- %1$s (from version %2$s to %3$s)' ),
html_entity_decode( $item->name ),
$item->item->current_version,
$item->item->new_version
);
} else {
$body[] = sprintf(
/* translators: 1: Theme name, 2: Version number. */
__( '- %1$s version %2$s' ),
html_entity_decode( $item->name ),
$item->item->new_version
);
}
unset( $past_failure_emails[ $item->item->theme ] );
}
$body[] = "\n";
}
}
if ( $failed_plugins ) {
$body[] = sprintf(
/* translators: %s: Plugins screen URL. */
__( 'To manage plugins on your site, visit the Plugins page: %s' ),
admin_url( 'plugins.php' )
);
$body[] = "\n";
}
if ( $failed_themes ) {
$body[] = sprintf(
/* translators: %s: Themes screen URL. */
__( 'To manage themes on your site, visit the Themes page: %s' ),
admin_url( 'themes.php' )
);
$body[] = "\n";
}
// Add a note about the support forums.
$body[] = __( 'If you experience any issues or need support, the volunteers in the WordPress.org support forums may be able to help.' );
$body[] = __( 'https://wordpress.org/support/forums/' );
$body[] = "\n" . __( 'The WordPress Team' );
if ( '' !== get_option( 'blogname' ) ) {
$site_title = wp_specialchars_decode( get_option( 'blogname' ), ENT_QUOTES );
} else {
$site_title = parse_url( home_url(), PHP_URL_HOST );
}
$body = implode( "\n", $body );
$to = get_site_option( 'admin_email' );
$subject = sprintf( $subject, $site_title );
$headers = '';
$email = compact( 'to', 'subject', 'body', 'headers' );
/**
* Filters the email sent following an automatic background update for plugins and themes.
*
* @since 5.5.0
*
* @param array $email {
* Array of email arguments that will be passed to wp_mail().
*
* @type string $to The email recipient. An array of emails
* can be returned, as handled by wp_mail().
* @type string $subject The email's subject.
* @type string $body The email message body.
* @type string $headers Any email headers, defaults to no headers.
* }
* @param string $type The type of email being sent. Can be one of 'success', 'fail', 'mixed'.
* @param array $successful_updates A list of updates that succeeded.
* @param array $failed_updates A list of updates that failed.
*/
$email = apply_filters( 'auto_plugin_theme_update_email', $email, $type, $successful_updates, $failed_updates );
$result = wp_mail( $email['to'], wp_specialchars_decode( $email['subject'] ), $email['body'], $email['headers'] );
if ( $result ) {
update_option( 'auto_plugin_theme_update_emails', $past_failure_emails );
}
}
/**
* Prepares and sends an email of a full log of background update results, useful for debugging and geekery.
*
* @since 3.7.0
*/
protected function send_debug_email() {
$update_count = 0;
foreach ( $this->update_results as $type => $updates ) {
$update_count += count( $updates );
}
$body = array();
$failures = 0;
/* translators: %s: Network home URL. */
$body[] = sprintf( __( 'WordPress site: %s' ), network_home_url( '/' ) );
// Core.
if ( isset( $this->update_results['core'] ) ) {
$result = $this->update_results['core'][0];
if ( $result->result && ! is_wp_error( $result->result ) ) {
/* translators: %s: WordPress version. */
$body[] = sprintf( __( 'SUCCESS: WordPress was successfully updated to %s' ), $result->name );
} else {
/* translators: %s: WordPress version. */
$body[] = sprintf( __( 'FAILED: WordPress failed to update to %s' ), $result->name );
++$failures;
}
$body[] = '';
}
// Plugins, Themes, Translations.
foreach ( array( 'plugin', 'theme', 'translation' ) as $type ) {
if ( ! isset( $this->update_results[ $type ] ) ) {
continue;
}
$success_items = wp_list_filter( $this->update_results[ $type ], array( 'result' => true ) );
if ( $success_items ) {
$messages = array(
'plugin' => __( 'The following plugins were successfully updated:' ),
'theme' => __( 'The following themes were successfully updated:' ),
'translation' => __( 'The following translations were successfully updated:' ),
);
$body[] = $messages[ $type ];
foreach ( wp_list_pluck( $success_items, 'name' ) as $name ) {
/* translators: %s: Name of plugin / theme / translation. */
$body[] = ' * ' . sprintf( __( 'SUCCESS: %s' ), $name );
}
}
if ( $success_items !== $this->update_results[ $type ] ) {
// Failed updates.
$messages = array(
'plugin' => __( 'The following plugins failed to update:' ),
'theme' => __( 'The following themes failed to update:' ),
'translation' => __( 'The following translations failed to update:' ),
);
$body[] = $messages[ $type ];
foreach ( $this->update_results[ $type ] as $item ) {
if ( ! $item->result || is_wp_error( $item->result ) ) {
/* translators: %s: Name of plugin / theme / translation. */
$body[] = ' * ' . sprintf( __( 'FAILED: %s' ), $item->name );
++$failures;
}
}
}
$body[] = '';
}
if ( '' !== get_bloginfo( 'name' ) ) {
$site_title = wp_specialchars_decode( get_bloginfo( 'name' ), ENT_QUOTES );
} else {
$site_title = parse_url( home_url(), PHP_URL_HOST );
}
if ( $failures ) {
$body[] = trim(
__(
"BETA TESTING?
=============
This debugging email is sent when you are using a development version of WordPress.
If you think these failures might be due to a bug in WordPress, could you report it?
* Open a thread in the support forums: https://wordpress.org/support/forum/alphabeta
* Or, if you're comfortable writing a bug report: https://core.trac.wordpress.org/
Thanks! -- The WordPress Team"
)
);
$body[] = '';
/* translators: Background update failed notification email subject. %s: Site title. */
$subject = sprintf( __( '[%s] Background Update Failed' ), $site_title );
} else {
/* translators: Background update finished notification email subject. %s: Site title. */
$subject = sprintf( __( '[%s] Background Update Finished' ), $site_title );
}
$body[] = trim(
__(
'UPDATE LOG
=========='
)
);
$body[] = '';
foreach ( array( 'core', 'plugin', 'theme', 'translation' ) as $type ) {
if ( ! isset( $this->update_results[ $type ] ) ) {
continue;
}
foreach ( $this->update_results[ $type ] as $update ) {
$body[] = $update->name;
$body[] = str_repeat( '-', strlen( $update->name ) );
foreach ( $update->messages as $message ) {
$body[] = ' ' . html_entity_decode( str_replace( '…', '...', $message ) );
}
if ( is_wp_error( $update->result ) ) {
$results = array( 'update' => $update->result );
// If we rolled back, we want to know an error that occurred then too.
if ( 'rollback_was_required' === $update->result->get_error_code() ) {
$results = (array) $update->result->get_error_data();
}
foreach ( $results as $result_type => $result ) {
if ( ! is_wp_error( $result ) ) {
continue;
}
if ( 'rollback' === $result_type ) {
/* translators: 1: Error code, 2: Error message. */
$body[] = ' ' . sprintf( __( 'Rollback Error: [%1$s] %2$s' ), $result->get_error_code(), $result->get_error_message() );
} else {
/* translators: 1: Error code, 2: Error message. */
$body[] = ' ' . sprintf( __( 'Error: [%1$s] %2$s' ), $result->get_error_code(), $result->get_error_message() );
}
if ( $result->get_error_data() ) {
$body[] = ' ' . implode( ', ', (array) $result->get_error_data() );
}
}
}
$body[] = '';
}
}
$email = array(
'to' => get_site_option( 'admin_email' ),
'subject' => $subject,
'body' => implode( "\n", $body ),
'headers' => '',
);
/**
* Filters the debug email that can be sent following an automatic
* background core update.
*
* @since 3.8.0
*
* @param array $email {
* Array of email arguments that will be passed to wp_mail().
*
* @type string $to The email recipient. An array of emails
* can be returned, as handled by wp_mail().
* @type string $subject Email subject.
* @type string $body Email message body.
* @type string $headers Any email headers. Default empty.
* }
* @param int $failures The number of failures encountered while upgrading.
* @param mixed $results The results of all attempted updates.
*/
$email = apply_filters( 'automatic_updates_debug_email', $email, $failures, $this->update_results );
wp_mail( $email['to'], wp_specialchars_decode( $email['subject'] ), $email['body'], $email['headers'] );
}
/**
* Performs a loopback request to check for potential fatal errors.
*
* Fatal errors cannot be detected unless maintenance mode is enabled.
*
* @since 6.6.0
*
* @global int $upgrading The Unix timestamp marking when upgrading WordPress began.
*
* @return bool Whether a fatal error was detected.
*/
protected function has_fatal_error() {
global $upgrading;
$maintenance_file = ABSPATH . '.maintenance';
if ( ! file_exists( $maintenance_file ) ) {
return false;
}
require $maintenance_file;
if ( ! is_int( $upgrading ) ) {
return false;
}
$scrape_key = md5( $upgrading );
$scrape_nonce = (string) $upgrading;
$transient = 'scrape_key_' . $scrape_key;
set_transient( $transient, $scrape_nonce, 30 );
$cookies = wp_unslash( $_COOKIE );
$scrape_params = array(
'wp_scrape_key' => $scrape_key,
'wp_scrape_nonce' => $scrape_nonce,
);
$headers = array(
'Cache-Control' => 'no-cache',
);
/** This filter is documented in wp-includes/class-wp-http-streams.php */
$sslverify = apply_filters( 'https_local_ssl_verify', false );
// Include Basic auth in the loopback request.
if ( isset( $_SERVER['PHP_AUTH_USER'] ) && isset( $_SERVER['PHP_AUTH_PW'] ) ) {
$headers['Authorization'] = 'Basic ' . base64_encode( wp_unslash( $_SERVER['PHP_AUTH_USER'] ) . ':' . wp_unslash( $_SERVER['PHP_AUTH_PW'] ) );
}
// Time to wait for loopback request to finish.
$timeout = 50; // 50 seconds.
$is_debug = WP_DEBUG && WP_DEBUG_LOG;
if ( $is_debug ) {
error_log( ' Scraping home page...' );
}
$needle_start = "###### wp_scraping_result_start:$scrape_key ######";
$needle_end = "###### wp_scraping_result_end:$scrape_key ######";
$url = add_query_arg( $scrape_params, home_url( '/' ) );
$response = wp_remote_get( $url, compact( 'cookies', 'headers', 'timeout', 'sslverify' ) );
if ( is_wp_error( $response ) ) {
if ( $is_debug ) {
error_log( 'Loopback request failed: ' . $response->get_error_message() );
}
return true;
}
// If this outputs `true` in the log, it means there were no fatal errors detected.
if ( $is_debug ) {
error_log( var_export( substr( $response['body'], strpos( $response['body'], '###### wp_scraping_result_start:' ) ), true ) );
}
$body = wp_remote_retrieve_body( $response );
$scrape_result_position = strpos( $body, $needle_start );
$result = null;
if ( false !== $scrape_result_position ) {
$error_output = substr( $body, $scrape_result_position + strlen( $needle_start ) );
$error_output = substr( $error_output, 0, strpos( $error_output, $needle_end ) );
$result = json_decode( trim( $error_output ), true );
}
delete_transient( $transient );
// Only fatal errors will result in a 'type' key.
return isset( $result['type'] );
}
}